Back to home
Proof

Checked on chain, twice.Run it yourself.

On cloned mainnet state

Real SPACEX mint, real Meteora pool, real 1% transfer fee. Mainnet slot 449,717,754, run 23 Sep.

SPACEX mint
PreA...sfTh
SPCXx mint
Xs3o...qpH8
Meteora pool
F9oJ...FC6B
  • PASSFill at the holder's price on the real pool
  • PASSIssuer pause blocks the fill
  • PASSRevoke stops fills at once
  • PASSFill below the holder's minimum is rejected
  • PASSIssuer fee change blocks the fill
  • PASSPrice order fills into USDC on the real OpenAI/USDC pool
  • PASSPrice above what the pool pays is refused

7 of 7 passed. Same program binary as the devnet deployment.

npm run proof:fork

On devnet

Devnet replica
Program
A6Uh...aSGV
Upgrade authority
Reading devnet...

The two red rows failed on purpose: they prove the program refuses a fill below the holder's minimum and any fill after a revoke. They are real transactions on chain, sent without a simulation shortcut. Every signature opens on Solana Explorer.

Price orders and arming, on devnet

Price orders into USDC

Devnet replica

Replica Anthropic sold into replica USDC on a devnet pool priced like the mainnet Meteora pool.

  • Order at 800 USDC per token3tWU...guak

    0.3 replica ANTHROPIC, at least 800 USDC per token, expires in 180 days, approval to order PDA

  • Filled above the holder's price53Gq...6KFZ

    keeper sold 0.3 replica ANTHROPIC for about 277.93 replica USDC (926.42 per token, minimum 800)

  • Order at 2,000 USDC, refused on chain5vmj...S6o2

    a 2,000 USDC per token order; the pool pays about 930, so the program refuses the swap

Arm for the IPO

Devnet replica

A demo token armed before any issuer event, then a simulated event. No real issuer announced it.

  • Armed with no event yet2dxa...tmkY

    0.5 demo token armed before any issuer event: largest gap 30%, fallback 30 days before the deadline at 50%

  • Simulated issuer event3nwF...fRB2

    SIMULATED issuer event for the demo token: 1 DEMOx per token, deadline 2027-03-12T23:59Z

  • Keeper activates the order24Bt...F4EX

    keeper copied the event terms into the armed order; the holder's 30% limit is unchanged

  • Filled at the armed limit5MA8...hNqk

    keeper sold 0.5 demo token for about 0.3780 DEMOx, 24.4% under entitlement, limit 30%

  • Holdfill never holds your tokens.
  • Holdfill never sets a price.
  • Holdfill never fills below your minimum or after the issuer deadline.
  • PreStocks tokens are not available to US persons.